New Developments in Ion Exchange Resins for the Recovery …

Ion exchange resins are expected to play an ever-increasing role in improving recoveries and reducing costs and environmental risks for gold mining operations. Gold-selective resins have potentially higher gold loadings and improved selectivity than …

A Review of Nickel, Copper, and Cobalt Recovery …

Ion exchange pr ocess usin g resins can be expl ained as a reversible pr ocess involv ing an exchange of io ns between an electrolyt e solution (a queous phas e) and resin (sol id phase).

Sequential recovery of gold and copper from bioleached wastewater using

Herein, we demonstrate effective recovery of bioleached Au and Cu via selective separation using ion exchange resins. pH-edge experiments revealed high affinity of Amberjet™ 4200 resin towards Au (adsorption capacity > 98%) over the entire pH range from pH 2–10, whereas Amberlite IRC-86 resin recorded very high Cu adsorption …

Thiourea Leaching: An Update on a Sustainable Approach for Gold …

Conradie et al. used simultaneous electrowinning after eluting gold from an ion exchange resin (Minix) using an acidic thiourea solution. The experiments were completed using a cathode box, containing two cathodes and three anodes, whereby the eluant from the resin was passed directly through the box and recirculated back through …

Application of Ion Exchange for Recovery of Noble Metals

Ion exchange has been researched in noble metal recovery technology for quite some time due to a number of advantages, such as the low cost of exploitation, low energy consumption, the possibility of regenerating the resins, long life span of the resins, price, selectivity, high efficiency, and the simple process apparatus [ 10 ].

Ion Exchange Resin Technology in Recovery of

Ion exchange technology has received outstanding attention in a wide variety of industries, including water treatment, pharmaceuticals, petrochemicals and hydrometallurgy due to its fast and high-efficiency operations. In hydrometallurgical applications, ion exchange resins have been used increasingly for the recovery and purification of metal pregnant …

Gold recovery from pregnant thiosulfate solution by ion exchange resin

Finally, a mechanism model of gold recovery was constructed. The research result will provide theoretical basis for gold recovery from pregnant thiosulfate solution by ion exchange resin. 2. Experimental work2.1. Material and reagents. The commercial Amberlite IRA-400 strong-base anion exchange resin was used in this …

Sequential process of sorption and incineration for recovery of gold

The maximum uptakes of gold by ion exchange resin (Amberjet™ 4400), activated carbon, and PEIB were 427.77, 170.64 and 361.76 mg g −1, respectively. To recover gold as a metallic form, the gold(I) sorbed sorbents were incinerated.

Gold recovery from synthetic mine tailings leachate using chelating ion

This paper will specifically investigate the recovery of gold using ion-exchange resins in a thiosulfate-thiourea lixiviant solution. A range of resins of different functionalities: Purolite® A200 (Type II quaternary ammonium), Lewatit® MonoPlus TP 214 and Puromet® MTS9140 (thiourea), Dowex™ M-4195 (bis-picolylamine) and Lewatit® …

Recovery of uranium from phosphoric acid solutions using chelating ion

Synthetic resins are shown to be effective in removing uranium from contaminated groundwater. Batch and field column tests showed that strong-base anion-exchange resins were more effective in removing uranium from both near-neutral-pH (6.5)- and high-pH (8)-low-nitrate-containing ground waters, than metal-chelating resins, which …

Gold recovery with ion exchange used resins

The objective of this work is to demonstrate that a weak base ion exchange resin taken as spent in a demineralization plant can be used for gold recovery from diluted alkaline cyanide solutions with no pH correction. Moreover, the low-volume solution resulting from the elution step is appropriate to recover gold through electrowinning [5].

ion exchange resin Companies in Europe

Purolite Corporation. Office in Rhondda Cynon Taff, UNITED KINGDOM. Purolite—the leading manufacturer of quality ion exchange, catalyst, adsorbent and specialty high-performance resins—is the only company that focuses 100 of its resources on the development and production of resin technology.

Resin-in-Solution Approach Solves Gold-Copper Selectivity Problem

More recently, Anglo Asian Mining plc selected MINIX ion-exchange resin for gold recovery at its Gedabek gold-copper project in Azerbaijan, which is situated approximately 300 km northwest of the country's capital of Baku. Gedabek, which is the first operating gold mine in Azerbaijan, was officially opened and produced its first gold in May 2009.

Cost-saving nanotechnology set to disrupt gold processing industry

Unlike conventional ion exchange resins, the IXOS® resin has a long life (>50 loading/unloading cycles), high capacity (~30g/kg) and selectivity for gold (>95%) and greater than 98% gold recovery ...

Metallic ions recovery from membrane separation

Ion exchange kinetics can be expressed as the rate of removal of the ions in the fluid phase in relation to time, involving the mass transfer of one or more components contained in an external liquid phase into the resin pores. The rate at which ion exchange reactions occur is a complex feature of many interconnected processes that can be ...

Ion Exchange Resin Technology in Recovery of Precious

The high affinity of Lewatit TP MonoPlus TP 220 towards gold complexes could be attributed to high mobility of AuCl 4 through the resin network and the presence of free electron pairs on the ...

Direct reuse at industrial level of ion-exchange …

Industrial wastewater is currently a big challenge for authorities due to its environmental issues when disposed to the ecosystem. From an economic perspective and long treatment time, it is …

Current progress on gold recovery from refractory ore and …

This paper focuses on the research progress of the recovery of gold from non-cyanide leachates by ion exchange resins, summarizes the existing resin types …

Adsorption of Gold from Copper–Tartrate–ThiosulfateSolutions with Ion

The adsorption behavior of gold from copper–tartrate–thiosulfate solutions with ion-exchange resins was studied in this paper. Experimental parameters include resin dosage, pH, temperature, copper, tartrate, and thiosulfate concentration. A moderate increase in resin dosage, pH, temperature, and tartrate concentration is beneficial for …

Ion Exchange Resin Technology in Recovery of Precious …

Table 9.10 Some properties of ion exchange resins for recovery and removal of silver from aqueous industrial solutions ... Rogachev I, Meinhardt E, Kautzmann R, Cortina JL, Sampaio C (2000) Ion exchange resins for gold cyanide extraction containing a piperazine functionality. 1. Synthesis and physico-chemical properties. …

SEPLITE® LXA816

The same resins were meeting the regulations prescribed under "Council of Europe resolution AP (97) 1 on ion exchange and adsorbent resins used in the processing of food stuffs", which stated when well pre-treated, adsorbent resins was suitable for used in food applications. SEPLITE® LXA816 Adsorbent Resin Physical and Chemical Characteristics:

(PDF) Comparison of ion-exchange resins and activated carbon …

Gold is recovered from its raw materials by bioleaching or cyanidation, followed by other operations, i.e., adsorption on the activated carbon [1][2][3], zinc precipitation [3,4] and ion exchange ...

Chelating Ion Exchange Resins | Purolite |

Common applications for chelating ion exchange resins include: Brine decalcification in the chlor-alkali industry. Resin-in-pulp (RIP) for base metal capture (copper, nickel, cobalt, zinc) Removal of hexavalent chromium from potable water. Removal of boron in semiconductor process water. Recovery of high-value precious metal catalysts.

Sequential recovery of gold and copper from bioleached

However, separation and recovery of the bioleached metals have always been a bottleneck. Herein, we demonstrate effective recovery of bioleached Au and Cu via selective separation using ion exchange resins. pH-edge experiments revealed high affinity of Amberjet™ 4200 resin towards Au (adsorption capacity > 98%) over the entire …

Sequential recovery of gold and copper from bioleached

Europe PMC is an archive of life sciences journal literature. Europe PMC Sequential recovery of gold and copper from bioleached wastewater using ion exchange resins.

Ion Exchange Resin Technology in Recovery of …

[17, 33, 34]. The ion exchange resin can be used to recover gold from its pregnant solutions through the reversible ion exchange reactions between the counter ions in the resins and gold complex in the solutions. Depending on the gold pregnant solution, gold exists predominantly in two different oxidation states (anion forms)

Gold recovery from synthetic mine tailings leachate using chelating ion

@article{Shields2023GoldRF, title={Gold recovery from synthetic mine tailings leachate using chelating ion exchange resins with thiosulfate-thiourea lixiviant}, author={Victoria R. Shields and Thomas J. Robshaw and Christopher P. Porter and James T.M. Amphlett and Alan Hides and Richard Bruce and Joan Cordiner and Mark D. …

Advances in hydrometallurgical approaches for gold …

Ion exchange resins. Ion-exchange reactions can be defined as a reversible exchange between ions in the resins and ions in the solution (Gomes et al., 2001). This …

Sequential recovery of gold and copper from bioleached

Herein, we demonstrate effective recovery of bioleached Au and Cu via selective separation using ion exchange resins. pH-edge experiments revealed high affinity of Amberjet™ 4200 resin towards ...

Gold recovery with ion exchange used resins

The objective of this work is to demonstrate that a weak base ion exchange resin taken as spent in a demineralization plant can be used for gold recovery from …

Recovery of gold with ion exchange resin from leaching …

Recovery of gold with ion exchange resin 1399 l) 2) 3) In a batch type adsorption test for Au(TU)2+ using several cation exchange resins, strong acidic cation exchange resins were found to be optimum for adsorbing Au by the acidothiourea leaching method. At a pH range of 1.2-2.0, these resins were able to completely adsorb Au.

Gold recovery with ion exchange used resins

Three resins (one cationic, two anionic) were screened for a gold recovery process from solutions of its anionic cyanide complex Au (CN) 2−. Based on their gold removal capacity and ease of regeneration, the weak base anionic resin Purolite A-100, regenerated with a 4 w% sodium hydroxide solution, was selected.

Leaching and recovery of gold using ammoniacal thiosulfate leach

The use of a weak-base ion exchange resin such as Amberlite IRA-743 (Rohm & Haas; weak base polyamine; 0.6 meq/mL) to recover gold from dilute thiosulfate leach liquors has been claimed by Marchbank et al. (1996). It was suggested that this might be followed by a similar recovery of the cationic cupric tetrammine complex.

Review Recovery of gold from secondary sources—A review

These solutions are then subjected to separation and purification procedures such as cementation, reduction, adsorption, coagulation, solvent extraction, ion exchange resin, gravity separation, ionic flotation, emulsion liquid membrane electro-winning and coal-gold agglomeration (CGA). A list of gold recovery agents is presented in Table 2.

Current progress on gold recovery from refractory ore and …

Among those methods, ion exchange resins can adsorb gold with high adsorption efficiency and regenerate easily as well. This paper focuses on the research progress of the recovery of gold from non-cyanide leachates by ion exchange resins, summarizes the existing resin types and elution processes, points out the limitations in …

Top 10 Ion Exchange Resin Suppliers in Europe

Felite Resin Technology. Location: Romania, Europe. Company type: Manufacturer, distributor. Year founded: 1972. Number of employees: 11-50. Main products: Strong/weak base cation and anion exchange resins. Other Products: Ready-to-use mixed bed resins. With more than 50 years of experience, Felite has the knowledge and skills …

Ion Exchange Resins Market Size to Surpass USD 2.1 billion …

The global ion exchange resin market was estimated to have acquired US$ 1.4 billion in 2022. It is anticipated to register a 4.6% CAGR from 2023 to 2031 and by 2031, the market is likely to gain ...